EP0127432A2 - Gegenstand zum Schutz eines Substrats - Google Patents

Gegenstand zum Schutz eines Substrats Download PDF

Info

Publication number
EP0127432A2
EP0127432A2 EP84303482A EP84303482A EP0127432A2 EP 0127432 A2 EP0127432 A2 EP 0127432A2 EP 84303482 A EP84303482 A EP 84303482A EP 84303482 A EP84303482 A EP 84303482A EP 0127432 A2 EP0127432 A2 EP 0127432A2
Authority
EP
European Patent Office
Prior art keywords
article
accordance
silicone rubber
weight
glass fiber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP84303482A
Other languages
English (en)
French (fr)
Other versions
EP0127432A3 (de
Inventor
Donald William Sharp
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Federal Mogul Systems Protection Group Inc
Original Assignee
Bentley Harris Manufacturing Co
Raychem Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bentley Harris Manufacturing Co, Raychem Corp filed Critical Bentley Harris Manufacturing Co
Publication of EP0127432A2 publication Critical patent/EP0127432A2/de
Publication of EP0127432A3 publication Critical patent/EP0127432A3/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/70—Insulation of connections
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K21/00—Fireproofing materials
    • C09K21/06—Organic materials
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
    • D06M15/647—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain containing polyether sequences
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29—Protection against damage caused by extremes of temperature or by flame
    • H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat

Definitions

  • This invention relates to glass fiber substrates having on the surface thereof a silicone-rubber based coating.
  • Substrates such as electrical cables and fuel, hydraulic and gas lines need to be protected from exposure to excessive heat not only from sustained high temperatures, but also from short term flame bursts and molten splashes which can cause severe damage to the substrate.
  • a glass fiber element such as a sleeve, jacket or tape to protect such substrates from heat. Thermal protection is enhanced if the glass fiber element is coated with a silicone rubber composition.
  • the degree of protection afforded the underlying substrate by conventional silicone-coated glass fiber element is inadequate.
  • a thermal barrier which maintains the underlying substrate about 700°F below the temperature of an open flame, e.g. about 2000°F, for about ten minutes is desirable.
  • Typical silicone-coated glass fiber elements currently used are not capable of providing such protection.
  • This invention provides an improved silicone-coated glass fiber article which is capable of providing a substrate with such protection from excessive heat.
  • One aspect of this invention provides an article comprising a glass fiber element having adhered thereto a coating comprising a cured silicone rubber composition containing a boron-containing compound in an amount of from about 0.01 to about 10% by weight, based on the weight of the silicone rubber.
  • Another aspect of this invention provides a method of preparing an article suitable for use in protecting a substrate from heat which comprises coating a glass fiber element with a composition comprising a curable liquid silicone rubber composition containing a boron containing compound in an amount of about 0.01 to about 10% by weight, based on the weight of the silicone rubber, and then curing the composition.
  • Yet another aspect of this invention provides a method of protecting a substrate from heat which comprises applying over the surface of said substrate an article comprising a glass fiber element coated with a composition comprising a cured silicone rubber composition containing a boron-containing compound in an amount of from about 0.01 to about 10% by weight, based on the weight of the silicone rubber.
  • the glass fiber element can be made from glass fibers or glass monofilaments.
  • the element is a fabric and can be prepared by any technique, for example, it can be a braided, knitted, woven or non-woven fabric.
  • the element can also be an assemblage of individual fibers such as a wound coil, or the like, if desired.
  • the form and shape of the element depends to a certain extent on the substrate ultimately to be protected.
  • the element can be, for example, a tape, sleeve, tubular article or the like. Where the substrate to be protected is a cable, hose or conduit, the preferred element is in tubular form, and is preferably a braided sleeve or jacket.
  • the composition coated onto the element comprises a liquid silicone rubber.
  • a liquid silicone rubber Such rubbers are well known and are commercially available.
  • the liquid rubber generally comprises a low molecular weight oranopoly- siloxane such as dimethylpolysiloxane, vinyl-endblocked dimethylpolysiloxane, or the like.
  • a curing catalyst is typically supplied as a separate component and is added to the liquid rubber composition just prior to use.
  • a typical curing catalyst used in such a system is a platinum catalyst.
  • Some liquid silicone rubber compositions are supplied as single component systems. These contain curing catalysts which are activated by heat, oxygen or the like. Until the catalyst is activated, curing of the silicone rubber does not occur. Further details of liquid silicone rubber compositions which can be employed in the practice of this invention can be found in U.S. Patents Nos. 3,445,420 to Johnson and 4,108,825 to Hayes.
  • the liquid silicone rubber composition used in accordance with this invention contains a boron-containing compound.
  • the boron compound is present in an amount of about 0.01 to about 10% by weight, based on the weight of the silicone rubber.
  • Preferred compositions contain from about 1 to about 10% by weight of the boron compound and particularly preferred are compositions contain from about 3 to about 7% by weight of the boron compound, based on the weight of the silicone rubber.
  • the boron compound used is preferably boric acid, an alkali metal borate, for example, sodium tetraborate decahydrate (borax), alkaline earth metal borate such as barium borate, or other metal borate such as zinc borate.
  • Zinc borate is particularly preferred.
  • the glass fiber element can be coated with the liquid silicone rubber composition by known techniques. Typically, the coating is applied by extruding the liquid silicone rubber composition onto the glass fiber element.
  • the element is generally coated on one side only. For example, if the substrate is tubular, the silicone rubber composition is generally applied to the outer surface which is the surface likely to come into contact with a flame or molten splash.
  • the article can be coated on both sides, if desired, to provide additional protection to the underlying substrate.
  • the coating is applied in an amount to provide a coating from about 20 to about 75 mils thick, preferably from about 30 to about 60 mils.
  • the composition is cured.
  • the composition is heated from about 350°F to about 450°F, and preferably about 400°F to effect cure of the silicone rubber.
  • Certain silicone rubber compositions are curable at room temperature and if such a composition is used to coat the glass fiber element in accordance with this invention heat is not required to effect cure.
  • borates and in particular borax as flame retardant additivies for resins is known. See for example U.S. Patent No. 3,868,346 to Merrill.
  • the amount of borate is much greater than the amount used in accordance with the present invention.
  • the compositions employed in this invention contain no more than about 10% by weight of a metal borate, based on the weight of the silicone rubber. It has been found that use of greater amounts of borate has no further effect on the thermal protection properties of the silicone-coated glass fiber element.
  • the protective article of this invention is used to protect substrates such as cables, hydraulic lines and the like.
  • the article protects the substrate for a period of time when exposed to temperatures of up to about 2000°F. This enables the substrate to continue to function, for example conduct electricity or hydraulic fluid, during a fire. This enables equipment, in particular safety equipment to continue in operation for a period of time.
  • the protective article of this invention meets typical requirements in providing protection at temperatures of up to about 2000°F for about 15 minutes. This requirement is generally tested by determining the temperature differential between the two surfaces of the article when one of them, typically the silicone-coated surface, is subjected to an open flame. The temperature differential between the two surfaces is preferably at least about 800°F after 5 minutes exposure to an open flame and 700°F after about 15 minutes.
  • the protective article of this invention is applied over the substrate generally with the silicone-coated surface being the external surface.
  • the article can be a tubular article such as a sleeve or jacket slid over the substrate. If an end of the substrate is not conveniently reached, the article in the form of a tape can be applied by spirally wrapping the tape around the substrate.
  • FIG. 1 An article in accordance with this invention is illustrated in Figure 1 and its use to protect a substrate in Figure 2.
  • a braided glass fiber sleeve, 2 has a coating, 3, adhered thereto over a portion of its length.
  • the coating 2 comprises a silicone rubber containing 5% by weight zinc borate, based on the weight of the silicone rubber.
  • an article in accordance with this invention has a coating over the entire outer surfaces, but for purposes of illustrating the braided glass fiber sleeve, the article of Figure 1 is shown with the coating along only a portion of its length
  • Figure 2 illustrates use of the article of Figure 1 with the coating extending along the entire outer surface.
  • the article, 1 is positioned over a connection, 4, between joined hydraulic lines, 5 and 6.
  • the protective article can be used to protect a portion of a cable or conduit as illustrated or can extend over its entire length.
  • compositions were prepared by blending the components together on an inline static mixer.
  • the liquid silicone rubber compositions were provided as two-part systems which were used in a 1:1 ratio in accordance with the manufacturer's instructions.
  • the boron compound and pigment were then added.
  • the pigment, red iron oxide was added in the form of a paste of 35% pigment in dimethylpolysilicone fluid.
  • zinc borate was added as a paste in dimethylpolysilicone carrier fluid having a borate to carrier fluid ratio of 1 to 1.5.
  • Examples 9 and 10 represent control examples in which no boron-containing compound was added.
  • Silicone Rubber B was liquid silicone rubber £SLE 5600 available from General Electric Company also believed to be a dimethylpolysiloxane.
  • Table 1 gives the components used to prepare seven compositions comprising liquid silicone rubber and metal borate.
  • compositions were evaluated for use in preparing an article of this invention by pressure coating a glass fiber braid with the composition, then curing the composition at 400°F. In each case the coating was applied to the outer surface of the braid. The coated surface was subjected to an open flame at a temperature of about 1850-1875°F. The temperature of the inner surface of the braid was measured at intervals of 5, 10 and 13.5 minutes after application of the flame and the temperature differential between the flame temperature and the temperature of the inner surface was derived from these measurements. The results are listed in Table 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)
  • Laminated Bodies (AREA)
  • Reinforced Plastic Materials (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
EP84303482A 1983-05-24 1984-05-23 Gegenstand zum Schutz eines Substrats Withdrawn EP0127432A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US49762383A 1983-05-24 1983-05-24
US497623 1983-05-24

Publications (2)

Publication Number Publication Date
EP0127432A2 true EP0127432A2 (de) 1984-12-05
EP0127432A3 EP0127432A3 (de) 1987-09-02

Family

ID=23977621

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84303482A Withdrawn EP0127432A3 (de) 1983-05-24 1984-05-23 Gegenstand zum Schutz eines Substrats

Country Status (3)

Country Link
EP (1) EP0127432A3 (de)
JP (1) JPS605045A (de)
GB (1) GB2140325B (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3325034A1 (de) * 1983-07-11 1985-01-24 G + H Montage Gmbh, 6700 Ludwigshafen Einer hochgeschwindigkeits-gasstroemung ausgesetztes bauteil sowie beplankungselement hierfuer
WO1988005885A1 (en) * 1987-01-29 1988-08-11 Eb Norsk Kabel A.S Method and device for fire and corrosion protected objects
EP0998433A1 (de) * 1997-07-17 2000-05-10 Nu-Chem, Inc. Verfahren zur herstellung von hochtemperaturglasfasen und wärmeschitzenden strukturen
FR2862736A1 (fr) * 2003-11-26 2005-05-27 Linde Ag Soufflet pour realiser l'etancheite d'une piece traversant la paroi d'un boitier a isolation thermique
WO2012033609A1 (en) * 2010-08-16 2012-03-15 Federal-Mogul Powertrain, Inc. Fire resistant textile sleeve and methods of construction thereof and providing fire protection therewith
CN101479413B (zh) * 2006-05-01 2013-02-13 费德罗-莫格尔公司 玄武岩连续纤维绝缘和耐火材料和套管以及其构造方法
WO2014009231A1 (en) 2012-07-12 2014-01-16 Tyco Electronics Raychem Gmbh Container for an electric or optical conductor

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4704335A (en) * 1983-11-03 1987-11-03 Essex Group, Inc. Highly flexible silicone rubber inorganic sleeving
CA1280275C (en) * 1985-05-08 1991-02-19 Larry A. Wank Process for densifying a ceramic part
JPH0655998B2 (ja) * 1986-12-05 1994-07-27 住江織物株式会社 パイル織物の難燃化処理方法
ES2007818A6 (es) * 1988-04-08 1989-07-01 Tejidos Telats S A Tubo aislante, en especial para proteccion termica y electrica.
CN110105766A (zh) * 2019-05-27 2019-08-09 广安市聚友绝缘材料有限公司 一种硅橡胶玻璃纤维陶瓷导管的制备工艺

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3868346A (en) * 1971-01-18 1975-02-25 High Voltage Engineering Corp Heat resistant polymeric compositions
US4181157A (en) * 1978-01-03 1980-01-01 Flexfab, Inc. Fire sleeving

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1543254A (fr) * 1967-07-11 1968-10-25 Snecma Matériau souple de protection thermique
GB1476241A (en) * 1973-05-29 1977-06-10 Square D Co Arc-extinguishing materials

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3868346A (en) * 1971-01-18 1975-02-25 High Voltage Engineering Corp Heat resistant polymeric compositions
US4181157A (en) * 1978-01-03 1980-01-01 Flexfab, Inc. Fire sleeving

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3325034A1 (de) * 1983-07-11 1985-01-24 G + H Montage Gmbh, 6700 Ludwigshafen Einer hochgeschwindigkeits-gasstroemung ausgesetztes bauteil sowie beplankungselement hierfuer
WO1988005885A1 (en) * 1987-01-29 1988-08-11 Eb Norsk Kabel A.S Method and device for fire and corrosion protected objects
EP0998433A1 (de) * 1997-07-17 2000-05-10 Nu-Chem, Inc. Verfahren zur herstellung von hochtemperaturglasfasen und wärmeschitzenden strukturen
EP0998433A4 (de) * 1997-07-17 2003-01-02 Nu Chem Inc Verfahren zur herstellung von hochtemperaturglasfasen und wärmeschitzenden strukturen
FR2862736A1 (fr) * 2003-11-26 2005-05-27 Linde Ag Soufflet pour realiser l'etancheite d'une piece traversant la paroi d'un boitier a isolation thermique
CN101479413B (zh) * 2006-05-01 2013-02-13 费德罗-莫格尔公司 玄武岩连续纤维绝缘和耐火材料和套管以及其构造方法
WO2012033609A1 (en) * 2010-08-16 2012-03-15 Federal-Mogul Powertrain, Inc. Fire resistant textile sleeve and methods of construction thereof and providing fire protection therewith
CN103154590A (zh) * 2010-08-16 2013-06-12 费德罗-莫格尔动力系公司 耐火织物套筒及其构造和以其提供防火保护的方法
CN103154590B (zh) * 2010-08-16 2015-09-23 费德罗-莫格尔动力系公司 耐火织物套筒及其构造和以其提供防火保护的方法
US9695962B2 (en) 2010-08-16 2017-07-04 Federal-Mogul Powertrain Llc Fire resistant textile sleeve and methods of construction thereof and providing fire protection therewith
WO2014009231A1 (en) 2012-07-12 2014-01-16 Tyco Electronics Raychem Gmbh Container for an electric or optical conductor
DE102012212205A1 (de) 2012-07-12 2014-05-15 Tyco Electronics Raychem Gmbh Behältnis für einen elektrischen oder optischen Leiter
US10347396B2 (en) 2012-07-12 2019-07-09 Tyco Electronics Raychem Gmbh Cable jacket for an electrical or optical conductor

Also Published As

Publication number Publication date
JPS605045A (ja) 1985-01-11
EP0127432A3 (de) 1987-09-02
GB8413201D0 (en) 1984-06-27
GB2140325A (en) 1984-11-28
GB2140325B (en) 1986-10-01

Similar Documents

Publication Publication Date Title
EP0127432A2 (de) Gegenstand zum Schutz eines Substrats
US4806416A (en) Insulating coating
US4428999A (en) Refractory coated and vapor barrier coated flame resistant insulating fabric composition
US4375493A (en) Refractory coated and conductive layer coated flame resistant insulating fabric composition
CA1332654C (en) Inorganic intumescent fire protective coatings
WO2004024833B1 (en) Flexible, insulative fire protective coatings and coated materials
KR20130139874A (ko) 방염성 텍스타일 슬리브 및 그것의 제조 방법 및 그것으로 방화 보호를 제공하는 방법
NO142417B (no) Boeyelig, ikke brennbar elektrisk kabel for transportkjoeretoeyer og skip
JPS60189114A (ja) 難燃性ケ−ブル
CA1266708A (en) Fire-protected electrical cable connection
AU762469B2 (en) Anti-corrosion coating and tape for electronic cable
CA1223311A (en) Flameproof casings for cable connections
JPS62154505A (ja) 管、電線、電気ケ−ブル及び光フアイバ用耐火性可撓性絶縁被覆
EP0281226B1 (de) Endothermisches Brandschutzmaterial
CN210200383U (zh) 一种防火可塑形电缆
JPS61253719A (ja) 難燃ケ−ブル
JPS54113630A (en) Fireproof coating material and metal structures coated with it
CN211125124U (zh) 一种具有抗压耐火效果的高压电缆
EP1074998B1 (de) Hoch temperaturresistentes Kabel und Verfahren zu seiner Herstellung
CN108318988A (zh) 一种带状光纤
CN216487512U (zh) 一种高温耐热套管
CN219958566U (zh) 一种无卤低烟阻燃电线
CN207425391U (zh) 耐高温防腐防火氧化物绝缘电缆
CN221529555U (zh) 一种低烟阻燃耐火电缆
CN217061551U (zh) 一种耐高温的电子连接线束

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19840613

AK Designated contracting states

Designated state(s): AT BE CH DE FR IT LI NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE FR IT LI NL SE

17Q First examination report despatched

Effective date: 19871126

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: RAYCHEM CORPORATION (A DELAWARE CORPORATION)

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: BENTLEY-HARRIS MANUFACTURING CO.

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19890819

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SHARP, DONALD WILLIAM